The following items are displayed on this screen:

¾General

Protocol:Select the protocol for the entry in the drop-down list. If the protocol you want to set is not in the list, you can add it to the list on 3.3.4.4 Protocol page.

Source IP: Enter the source IP range for the entry. 0.0.0.0 - 0.0.0.0 means any IP is acceptable.

Destination IP: Enter the destination IP range for the entry. 0.0.0.0 - 0.0.0.0 means any IP is acceptable.

Source Port: Enter the source Port range for the entry, which is effective only when the protocol is TCP, UDP or TCP/UDP. The default value is 1 – 65535, which means any port is acceptable.

Destination Port: Enter the destination port range for the entry, which is effective only when the protocol is TCP, UDP or TCP/UDP. The default value is 1 – 65535, which means any port is acceptable.

WAN:

Select the WAN port for transmitting packets.

Effective Time: Specify the time for the entry to take effect.

Status:Activate or inactivate the entry.

¾List of Rules

You can view the information of the entries and edit them by the Action buttons.

The first entry in Figure 3-39indicates: All the packets with Source IP between 192.168.0.100 and 192.168.0.199 and Destination IP between 116.10.20.28 and 116.10.20.29 will be forwarded from WAN1 port, regardless of the port and protocol. This entry is activated d and will take effect at 8 am to 10 pm from Monday to Friday.

3.3.4.3Link Backup

With Link Backup function, the Router will switch all the new sessions from dropped line automatically to another to keep an always on-line network.

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TP-Link TL-ER6120 manual Link Backup, Wan

TL-ER6120 specifications

The TP-Link TL-ER6120 is a robust and versatile gigabit router designed for small to medium-sized businesses, offering high-performance routing capabilities while ensuring secure network management. This device stands out for its user-friendly configuration, affordability, and rich feature set tailored for business needs.

One of the key features of the TL-ER6120 is its advanced routing capabilities. It supports load balancing and failover, ensuring reliable internet connectivity by distributing traffic across multiple WAN ports. This helps to maintain optimal performance even during high-traffic periods. The router can accommodate up to three WAN ports, providing flexibility in terms of connection options and redundancy.

Security is paramount in any business network, and the TL-ER6120 does not disappoint. It includes a robust firewall with stateful packet inspection, preventing unauthorized access and safeguarding sensitive data. The router also supports various VPN protocols, including PPTP, L2TP, and IPSec, enabling secure remote access for employees working from remote locations. This feature is particularly beneficial as remote work becomes more prevalent.

In addition to its security features, the TL-ER6120 offers support for VLAN configuration, allowing businesses to segment their networks for better performance and security. Dynamic Routing Protocols such as RIP v1/v2, and static routing are also supported, ensuring seamless data exchange across different network segments.

Another significant aspect of the TL-ER6120 is its Quality of Service (QoS) functionality. This feature enables users to prioritize bandwidth for critical applications, ensuring that services like VoIP and video conferencing maintain optimal performance. By managing the flow of data, businesses can enhance their operational efficiency.

The TL-ER6120 is equipped with several advanced management features, including a web-based user interface that simplifies network configuration and monitoring. Users can easily manage their network settings, view traffic statistics, and troubleshoot issues without advanced technical knowledge.

In conclusion, the TP-Link TL-ER6120 is an excellent choice for businesses seeking a reliable, feature-rich router. Its combination of security, performance, and ease of use makes it an ideal solution for managing business networks efficiently. Whether for load balancing, secure remote access, or network segmentation, the TL-ER6120 meets diverse business needs with sophistication and reliability.